Sunitinib Malate (SU-11248 Malate)

Alias: sunitinib; SU-11248; SU 11248; SU11248; SU011248; trade name: Sutent
Cat No.:V0489 Purity: ≥98%
Sunitinib Malate (formerly also known as SU11248 Malate; trade nameSutent)) is a potent, orally bioavailable and multi-targeted RTK (receptor tyrosine kinase) inhibitor with potent anticancer activities.
Sunitinib Malate (SU-11248 Malate) Chemical Structure CAS No.: 341031-54-7
Product category: VEGFR
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of Sunitinib Malate (SU-11248 Malate):

  • Sunitinib free base (SU-11248)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Sunitinib Malate (formerly also known as SU11248 Malate; trade nameSutent)) is a potent, orally bioavailable and multi-targeted RTK (receptor tyrosine kinase) inhibitor with potent anticancer activities. In cell-free assays, it inhibits c-Kit in addition to VEGFR2 (Flk-1) and PDGFRβ, with IC50s of 80 nM and 2 nM, respectively. On January 26, 2006, the FDA approved it for the treatment of renal cell carcinoma and gastrointestinal stromal tumor that was resistant to imatinib. The malate salt of an indolinone-based tyrosine kinase inhibitor with possible anti-tumor properties is called sunitinib malate. Sunitinib inhibits angiogenesis and cell proliferation by blocking the tyrosine kinase activities of VEGFR2, PDGFRb, and c-kit.

Biological Activity I Assay Protocols (From Reference)
Targets
VEGFR2 (IC50 = 80 nM); PDGFRβ (IC50 = 2 nM)
ln Vitro
Sunitinib inhibits FLT-3 and Kit with considerable potency.[1] With a Ki of 9 nM and 8 nM, respectively, sunitinib is a strong ATP-competitive inhibitor of VEGFR2 (Flk1) and PDGFRβ. It provides >10-fold greater selectivity for VEGFR2 and PDGFR than FGFR-1, EGFR, Cdk2, Met, IGFR-1, Abl, and src. With IC50 values of 10 nM and 10 nM, respectively, sunitinib inhibits the phosphorylation of VEGFR2 in response to VEGF and PDGFRβ in response to PDGF in serum-starved NIH-3T3 cells expressing VEGFR2 or PDGFRβ. Sunitinib has an IC50 of 40 nM for VEGF-induced proliferation of serum-starved HUVECs and an IC50 of 39 nM and 69 nM for PDGF-induced proliferation of NIH-3T3 cells overexpressing PDGFRβ or PDGFRβ, respectively.[2] With an IC50 of 250 nM, 50 nM, and 30 nM, respectively, sunitinib inhibits the phosphorylation of wild-type FLT3, FLT3-ITD, and FLT3-Asp835. With IC50 values of 8 nM and 14 nM, respectively, sunitinib suppresses the growth of MV4;11 and OC1-AML5 cells and, in a dose-dependent fashion, triggers apoptosis.[3]
ln Vivo
Sunitinib (20–80 mg/kg/day) exhibits broad and potent dose-dependent anti-tumor activity against a variety of tumor xenograft models, including HT-29, A431, Colo205, H-460, SF763T, C6, A375, or MDA-MB-435. This is consistent with the significant and selective inhibition of VEGFR2 or PDGFR phosphorylation and signaling in vivo. Six out of eight mice receiving 80 mg/kg/day of sunitinib for 21 days experience complete tumor regression, and 110 days after the end of the treatment, there is no regrowth of the tumor.Tumors that do not completely regress after the first round of treatment can still be successfully treated with sunitinib in a second round. Tumor MVD significantly decreases with sunitinib treatment, with SF763T glioma tumors reduced by approximately 40%. Tumor size remains unchanged, but luciferase-expressing PC-3M xenografts treated with SU11248 completely inhibits further tumor growth.[2] Treatment with sunitinib (20 mg/kg/day) increases survival in the FLT3-ITD bone marrow engraftment model and significantly suppresses the growth subcutaneous MV4;11 (FLT3-ITD) xenografts.[3]
Enzyme Assay
Sunitinib's IC50 values against PDGFRβ and VEGFR2 (Flk-1) are ascertained by employing glutathione S-transferasefusion proteins that encompass the entire RTK cytoplasmic domain. In order to measure the trans-phosphorylation activity of VEGFR2 (Flk-1) and PDGFRβ, biochemical tyrosine kinase assays are carried out in 96-well microtiter plates that have been precoated (20 μg/well in PBS) and incubated with the peptide substrate poly-Glu,Tyr (4:1) for an entire night at 4 °C. Adding 1-5% (w/v) BSA to PBS blocks excess protein binding sites. The cells of insects infected with baculovirus produce purified GST-fusion proteins. The microtiter wells are then filled with GST-VEGFR2 and GST-PDGFRβ in a 2 × concentration kinase dilution buffer that contains 40 μM NaVO4, 50 mM NaCl, 100 mM HEPES, and 0.02% (w/v) BSA. 50 ng/mL is the final enzyme concentration for GST-VEGFR2 or GST-PDGFRβ. To create a range of inhibitor concentrations suitable for every enzyme, 25 μL of diluted Sunitinib is then added to each reaction well. A solution of MnCl2 is mixed with varying concentrations of ATP to start the kinase reaction. The final concentration of MnCl2 is 10 mM, and the final ATP concentrations span the Km for the enzyme. After allowing the plates to sit at room temperature for five to fifteen minutes, the reaction is halted by adding EDTA. After that, TBST is used to wash the plates three times. After adding rabbit polyclonal antiphosphotyrosine antisera at a 1:10,000 dilution to the wells in TBST containing 0.025% (w/v) nonfat dry milk, 0.5% (w/v) BSA, and 100 μM NaVO4, the wells are incubated at 37 °C for one hour. After three TBST washes, the plates are inoculated with goat anti-rabbit antisera conjugated with horseradish peroxidase (1:10,000 dilution in TBST). The plates are cleaned three times with TBST after an hour of incubation at 37 °C. Once 2,2′-azino-di-[3-ethylbenzthiazoline sulfonate] has been added as substrate, the amount of phosphotyrosine in each well is quantified.
Cell Assay
The cells are starved for an entire night in a medium containing 0.1% FBS before FL (50 ng/mL; FLT3-WT cells only) and sunitinib are added. After 48 hours of culture, proliferation is assessed using trypan blue cell viability assays or the Alamar Blue assay. Apoptosis is quantified using Western blotting 24 hours after Sunitinib addition in order to identify caspase-3 levels or poly (ADP-ribose) polymerase (PARP) cleavage.
Animal Protocol
Mice: The mice used are female nu/nu (8–12 weeks old, 25 g). In short, on day 0, mice receive a subcutaneous injection of 3-5×106 tumor cells into the hind flank region. Once the tumors have grown to the indicated average size, the mice bearing the tumors are treated daily with SU11248 administered orally as a carboxymethyl cellulose suspension or as a citrate buffered (pH 3.5) solution. Tumor growth is assessed using tumor volume measurements taken twice a week. When tumors in animals receiving vehicle treatment reach an average size of 1000 mm3 or are determined to negatively impact the animals' quality of life, studies are usually stopped. Rats: There are forty 200–230 g female Sprague-Dawley rats used. Five to ten animals per group are fed freely. Under 2% isoflurane gas anesthesia, 1×104 Walker 256 cells are injected into the left abdominal mammary fat pad. Rats are weighed every day, and they are gavaged with 30 mg/kg of sunitinib malate or 5 mg/kg of figolimod in olive oil. Calipers are used to measure the tumours. Before the tumors become ulcerated, the animals are put to sleep and killed with an intracardiac injection of ketamine (50 mg/mL). Rats are dissected to look for intestinal, liver, kidney, or lung metastases.
References

[1]. J Med Chem . 2003 Mar 27;46(7):1116-9.

[2]. Clin Cancer Res . 2003 Jan;9(1):327-37.

[3]. Blood . 2003 May 1;101(9):3597-605.

[4]. Mol Cancer Ther . 2003 Oct;2(10):1011-21.

[5]. Blood . 2004 Dec 15;104(13):4202-9.

[6]. Mol Cancer Ther . 2006 Oct;5(10):2522-30.

[7]. EMBO J . 2011 Mar 2;30(5):894-905.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H33FN4O7
Molecular Weight
532.56
Exact Mass
532.23332757
Elemental Analysis
C, 58.64; H, 6.25; F, 3.57; N, 10.52; O, 21.03
CAS #
341031-54-7
Appearance
Yellow solid powder
SMILES
CCN(CC)CCNC(=O)C1=C(NC(=C1C)/C=C\2/C3=C(C=CC(=C3)F)NC2=O)C.C([C@@H](C(=O)O)O)C(=O)O
InChi Key
LBWFXVZLPYTWQI-IPOVEDGCSA-N
InChi Code
InChI=1S/C22H27FN4O2.C4H6O5/c1-5-27(6-2)10-9-24-22(29)20-13(3)19(25-14(20)4)12-17-16-11-15(23)7-8-18(16)26-21(17)28;5-2(4(8)9)1-3(6)7/h7-8,11-12,25H,5-6,9-10H2,1-4H3,(H,24,29)(H,26,28);2,5H,1H2,(H,6,7)(H,8,9)/b17-12-;/t;2-/m.0/s1
Chemical Name
N-[2-(diethylamino)ethyl]-5-[(Z)-(5-fluoro-2-oxo-1H-indol-3-ylidene)methyl]-2,4-dimethyl-1H-pyrrole-3-carboxamide;(2S)-2-hydroxybutanedioic acid
Synonyms
sunitinib; SU-11248; SU 11248; SU11248; SU011248; trade name: Sutent
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ~15 mg/mL (~28.2 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In Vivo)
4% DMSO+30% PEG 300+ddH2O: 2mg/mL
 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.8777 mL 9.3886 mL 18.7772 mL
5 mM 0.3755 mL 1.8777 mL 3.7554 mL
10 mM 0.1878 mL 0.9389 mL 1.8777 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

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Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT03541902 Active
Recruiting
Drug: Cabozantinib
Drug: Sunitinib Malate
Renal Cell Carcinoma
Papillary Renal Cell Carcinoma
M.D. Anderson Cancer Center May 15, 2018 Phase 2
NCT00329043 Active
Recruiting
Drug: LHRH Agonist
Drug: Sunitinib Malate
Prostate Cancer M.D. Anderson Cancer Center May 2006 Phase 2
NCT00381641 Active
Recruiting
Drug: Sunitinib
Drug: Sunitinib Malate
Recurrent Thyroid Gland
Carcinoma
Refractory Thyroid Gland
Carcinoma
National Cancer Institute
(NCI)
August 8, 2006 Phase 2
NCT05687123 Recruiting Drug: Lutetium Lu 177 Dotatate
Drug: Sunitinib Malate
Metastatic Pancreatic
Neuroendocrine Tumor
Pancreatic Neoplasm
National Cancer Institute
(NCI)
January 6, 2024 Phase 1
NCT05678673 Recruiting Drug: Nivolumab
Drug: Sunitinib Malate
Non-Clear Cell Renal Cell
Carcinoma
Exelixis January 1, 2023 Phase 3
Biological Data
  • Sunitinib Malate

  • Sunitinib Malate
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